[LEAPSECS] The Variable Earth’s Rotation in the 4th–7th Centuries: New ΔT Constraints,from Byzantine Eclipse Records

Steve Allen sla at ucolick.org
Mon Sep 19 01:16:22 EDT 2022


On Sun 2022-09-18T23:43:59-0400 Brooks Harris hath writ:
> The Variable Earth’s Rotation in the 4th–7th Centuries: New ΔT Constraints
> from Byzantine Eclipse Records
> https://iopscience.iop.org/article/10.1088/1538-3873/ac6b56/pdf

Very nice.  The old eclipse observations are very scarce and the
decadal fluctuations can take the value of Delta T far askew.
It takes a lot of work to recognize the useful descriptions.
The authors clearly also wanted to typset Amharic.

--
Steve Allen                    <sla at ucolick.org>              WGS-84 (GPS)
UCO/Lick Observatory--ISB 260  Natural Sciences II, Room 165  Lat  +36.99855
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